If your trip to Mauthausen is all sorted out but your itinerary is looking a little empty, we can give you a few hints and tips.St. Lawrence Basilica is a notable attraction in this fascinating city. Stop in and see what all the fuss is about.Keep yourself on the go by checking out Mauthausen-Gusen Concentration Camp and Enns Main Square. If you still have plenty of stamina and space on that itinerary, Enns City Tower also awaits.